Enhanced immunogen for inactivated vaccine for infection with Japanese encephalitis viruses and process for producing the same

摘要

The present invention provides a novel inactivated virus particle and a reinforced immunogen which have a reinforced titer about twice to about 10 times that of a conventional vaccine, as well as a method for producing the same. The inactivated virus particle of the present invention is useful in a diagnostic agent for infectious disease caused by a group of Japanese encephalitis viruses.